Accessory for internal combustion engine



May 21,1957 H. R. GALLUN 2,793,001

ACCESSORY FOR INTERNAL COMBUSTION ENGINE Filed Jan. 15, 1954 2Sheets-Sheet 1 IN VEN TOR. HUGO R GALLUN BY gizsw ATTORNEY May 21, 1957H. R. GALLUN ,7 3, 0

f ACCESSORY FOR'INTERNAL. COMBUSTION ENGINE Filed Jan. 15, 1954 2Sheets-Sheet 2 IN VEN TOR. HUGO RGALLQN .BY a

ATTORNEY United States Patent O ACCESSORY FOR INTERNAL COMBUSTION ENGINEHugo R. Gallun, Salem, reg., assignor to Smog Co., a corporation ofNevada Application January 15, 1954, Serial No. 404,356 2 Claims. (Cl.251-129 air bleed attachment for carburetors which is readily applied toexisting manifold assemblies and requires no special equipment in itsuse.

Another object of this invention is to provide a mechanism of thecharacter described which is possessed of rapid opening and closingcharacteristics and which will be substantially noiseless in operation.

These together with other objects and advantages which will becomesubsequently apparent reside in the details of construction andoperation as more fully hereinafter described and claimed, referencebeing had to the accompanying drawings forming a part hereof, whereinlike numerals refer to like parts, and in which:

Figure l is a side elevationaljview of an internal combustion engineshowing the attachment in place;

Figure 2 is a horizontal section taken substantially along the plane ofsection line 22 of Figure l;

Figure 3 is an enlarged view, partly in section, of the attachment;

Figure 4 is a perspective View of the valve body member;

Figure 5 is a view of the attachment with portions thereof broken awayto show the valve body in closed position; and

Figure 6 is a diagrammatic view showing a portion of the electricalcircuit for controlling the accessory attachment.

Referring now more particularly to Figure 1, reference numeral 10indicates generally the block of an internal combustion engine providedwith the usual head 12 and with the conventional intake manifoldassembly 14, exhaust manifold assembly 16 and preheater chamber 18 uponwhich is mounted the carburetor assembly 20 provided with its usual airfilter member 22. The conventional manner of mounting the carburetor 20on the preheater 18 is by the provision of stud members threaded intothe latter which project through suitable openings on the flange 24 ofthe carburetor, nuts being engaged on the upper ends of the studs forremovably securing the carburetor in place.

To utilize the invention, it may be necessary to replace theconventional carburetor attaching studs with longer studs so that theflange portion 26 of the adapter 28 may be secured in position betweenthe preheater and the carburetor flange, these studs being indicated bythe ref- Still another object of this invention is to provide an erencecharacter 30. It will be seen that the adapter 28 includes thepreviously mentioned fiat flange 26 which has a bore 32 therethroughmating with both the carburetor and preheater bores or openings and aconduit portion.34 which may be of elbow configuration to properlyposition the attachment, the passage 36 of the elbow intersecting thebore 32 to communicate with the fuel air passage of the intake manifold.The free end of the adapter is provided with a flange 38 by means ofwhich it is detachably secured to the flange 40 of the air bleed valveassembly indicated generally by the reference character 42.

As seen most clearly in Figure 3, the air bleed valve assemblyincorporates a horizontally extending neck portion 44 having thepreviously mentioned flange 40 at its free end and extending from thebody of the valve assembly, in the manner shown. The valve assembly isalso provided with an air born 46 and its interior is hollow and hasupper and lower horizontal partition walls 48 and 50 extending from sideto side thereof and connected at one end with a vertical wall member 52so as to provide the chamber 54 which opens into the interior of thevalve body and in communication with the air horn 46 through openings 53and 55 in the upper and is provided which is secured to a plunger shaft58 extending from plunger 60 of solenoid assembly 62 for verticalreciprocation under action of the solenoid, when energized, and theweight of the valve mechanism as a whole when the solenoid isde-energized.

As seen most clearly in Figure 4, the valv 56 embodies a tubular shank64 having upper and lower valve heads 66 and 68 at its opposite endsmovable into and out of the openings 53 and 55, respectively, the openposition being shown in Figure 3, while the closed position is shown inFigure 5.

The solenoid assembly is removably secured to the bottom of the airbleed assembly 42, as by the fastener 70, such that the plunger shaft 58is in concentric alignment with openings 53 and 55. The shaft extendsentire-' ly through the assembly 42 and is threaded at its upper freeend 71 to receive the lock nut 72 below which a metal washer 74 and aresilient bumper washer 76 are respectively disposed. The top of theassembly 42 is provided with an enlarged opening 78 through which thevalve 56 may be inserted, the valve shank having a transverse boretherethrough, as does the plunger shaft, for receiving a lock pin 80 forsecuring these parts together.

A cover 82 is removably secured to the assembly 42 over the opening 78and the lock nuts 72 are so adjusted that the valve heads 66 and 68 arein their associated openings 53 and 55 when the bumper 76 rests upon thecover 82. The shaft portion 71 is of reduced diameter to provide ashoulder upon which the metal washer 84 rests, the resilient bumperwasher 86 resting upon the latter and being engaged against theundersurface of the cover 82 when the solenoid is energized to limit theupward movement of the valve 56. When the solenoid is energized, it willbe noted that the circumferentially spaced depending guide fingers 88and 90 on the valve heads 66 and 68 remain in guiding contact with thesurfaces of the walls 48 and 50 defining the openings 53 and 55 so thatthe valve assembly, when the solenoid is deenergized, will be properlyguided back into sealing relation to the wall openings with as rapid amovement as possible.

Patented May 21, 1957 66 and 63, it will he manifest that a very rapidand unrestricted communication between the air horn 46 and the adapter28 will be effected upon energization of the solenoid assembly 62. s

For energizing the solenoid assembly 62, a switch member 91 is. mountedon the carburetor 20 adjacent the throttle valve actuating lever 93 sothatwhen the accelerator linkage 92 is in the position of the full linesof Figure 1, that is, the. closed. position. of the throttle valve, theswitch 91. will be actuated to permit the solenoid to be connected to asource of. electrical current through the lead 94, switch 91, lead 96,dash control switch and lead 100. The dash control switch is providedfor operation under control of the operator of the motor vehicle so thatthe valve cannot. be opened when the engine is cold. Lead 100 isconnected, through a solenoid switch 102, to a generator 104 driven bythe engine. The. contact member 106 of the solenoid switch is-springurged to. the open position and the spring is of such strength that whenthe engine is idling the output of generator 104 will be insufiicient toovercome the force of the spring. Thus, at some speed close to thenormal idling speed of the engine, the solenoid 62 cannot be energizedto open the valve assembly.

Any conventional air filter "108 may be used on the air horn 46, asdesired.

From the foregoing, the construction and operation of the device will bereadily understood and further explanation is believed to beunnecessary. However, since numerous modifications and changes willreadily occur to those skilled in the art, it is not desired to limitthe invention to the exact construction shown and described, andaccordingly, allsuitable modifications and equivalents may beresortedto, falling within the scope of the appended claims.

Whatis claimed as new is as follows:

1. An air bleed valve assembly for internal combustion enginescomprising, a hollow casing having an air horn opening 'thereinto and anoutlet neck, upper and lower partition walls providing a chamberseparating the outlet neck from the air horn, said upper and lower wallseach having openings therethrough and said casing having apertures inthe opposing walls thereof aligned with said partition wall openings, aplunger shaft extending vertically through said casing and chamber andhaving its ends disposed exteriorly of said casing, solenoid'means formoving said shaft upwardly mounted ex- 43, teriorly of said casing andattached to one end of said shaft, and a vertically reciprocable valvemounted on an intermediate portion of said shaft having upper and lowerpiston-like head portions movable into and out of said openings tosealingly engage the side walls of said openings to establish anddisestablish communication between said air horn and said outlet neck,and spaced resilient bumper means on said shaft adjacent the end thereofopposite said one end for limiting the upper and lower positions of saidvalve, said bumper means being disposed interiorly and exteriorly ofsaid casing, means on saidshaft for adjusting the position of theexterior bumper means along said shaft.

2. An air bleed valve assembly for internal combustion enginescomprising, a hollow casing having an air horn opening thereinto and anoutlet neck, upper and lower partition walls providing a chamberseparating the outlet neck from the air horn, said upper and lower wallseach having openings therethrough and said casing having apertures inthe opposing walls thereof aligned with said partition wall openings, aplunger shaft extending vertically through said casing and chamber andhaving its ends disposed exteriorly of said casing, solenoid means formoving said shaft upwardly mounted exteriorly of said casing andattached to one end of said'shaft, and a vertically reciprocable, valvemounted on an intermediate portion of said shaft having upper and" lowerpiston-like head portions movable into and out of said openings tosealingly engage the side walls of said openings to establish anddisestablish communication between said air horn and said outlet neck,said valve. heads having circumferentially spaced guide fingers engagingwith the surfaces of said walls defining said openings, and spacedresilient bumper means on said shaft adjacent the end thereof oppositesaid one end for limiting the upper and lower positions of said valve,said bumper means being disposed interiorly and exteriorly of saidcasing, means on said shaft for adjusting the position of the exteriorbumper means along said shaft.

References Cited in the file of this patent UNITED STATES PATENTS775,243 Losch Nov. 15, 1904 783,107 Davis Feb. 21, 1905 FOREIGN PATENTS7 551,688 Germany June 3, 1932 566,256 Germany Dec. 13, 1932

